Volvo D13F485 6 Cylinder 12.8 L Ultra Low Sulfur Diesel 485 hp Engine, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Volvo ATO2512C 12-Speed Automated Transmission, 13200 lb Front Axle, 40000 lb Rears, 53200.0 lb GVWR, Air Ride Cab, 61 in High Rise Sleeper Cab, Bunk Beds, Aluminum Outer Wheels, 295/75R22.5, Air Assist Front Suspension, Air Ride Suspension, 216 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks